<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>login</title>
</head>
<body>
<form method="post" action="/login">
    用户名：<input type="text" name="username" id="username"/>
    密码：<input type="password" name="password" id="password"/>
    <input type="submit" value="提交"/>
</form>
</body>
</html>